PQexecPrepared
Description
Sends a request to execute a prepared statement with given parameters and waits for the result.
Prototype
PGresult* PQexecPrepared(PGconn* conn, const char* stmtName, int nParams, const char* const* paramValues, const int* paramLengths, const int* paramFormats, int resultFormat);
Parameters
Keyword |
Description |
---|---|
conn |
Connection handle. |
stmtName |
stmt name, which can be set to "" or NULL to reference an unnamed statement. Otherwise, it must be the name of an existing prepared statement. |
nParams |
Parameter quantity. |
paramValues |
Actual values of parameters. |
paramLengths |
Actual data lengths of parameters.
NOTICE:
In the following cases, the parameter length is forcibly set to the corresponding value of paramLengths:
In these cases, paramLengths cannot be empty, and the caller must ensure the correctness of the parameter length. |
paramFormats |
Parameter formats (text or binary). |
resultFormat |
Return result format (text or binary). |
Return Values
PGresult pointers.
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